[Exim] sender_verify_hosts 2nd

hi,

i have in my configure:

sender_verify_hosts = "! my.backup.host"

and i get:
rejected from my.backup.host [123.123.123.123] (root): can't currently
verify any sender in the header lines (envelope sender is <>) - try later

i can't do the exact exim -bh becaus "my.backup.host" is sendmail and i
dont know exactly what sendmail is doing here....


any suggestions?


robert